@charset "utf-8";
#box{
	width: 350px;
	height: 350px;
	border: 1px solid #ccc;;
	/*父元素定位*/
	position: relative;
}
#bigBox{
	width: 400px;
	height: 400px;
	position: absolute;
	top: 0;
	left: 360px;
	border: 1px solid #ccc;
	overflow: hidden;
	display: none;
}
#mask{
	width: 175px;
	height: 175px;
	background: rgba(255,255,0,0.4);
	position: absolute;
	top: 0;
	left: 0;
	cursor: move;
	direction: none;
}
#bigBox{
	position: absolute;
}
